s1 = {"game", "TV", "song"}
s2 = {"sing", "shopping", "TV"}
# 交集
print(s1 & s2)
# 并集
print(s1 | s2)
# 反交集
print(s1 ^ s2)
# 差集
print(s1 - s2)
# 补集
print(s2 - s1)

